a) \(14.50=7.2.50=7.100=700\)

b) \(16.125=2.8.125=2.1000=2000\)

c) \(9.4.25\)

\(=9.6.4.25\)

\(=54.1000\)

\(=5400\)

d) \(12.125.54=3.4.125.2.27=3.27.4.2.125\)

\(=81.8.125\)

\(=81.1000\)

\(=81000\)

\(a,14.50=14.100:2=1400:2=700\\ b,16.125=\left(16:8\right).\left(125.8\right)=2.1000=2000\\ c,9.24.25=9.6.4.25=54.100=5400\\ d,12.125.54=\left(3.4\right).125.\left(27.2\right)=\left(3.27\right).\left(4.2.125\right)=81.1000=81000\)

a, 997 + 37 = 1034

b, 1354 - 996 = 358

c, 9 . 24 . 25 = 5400

d, 12 . 125 . 54 = 81000

e, 64 . 125 . 875 = 7000000

a) 997+37=1034

b) 1354-996=358

c)9x24x25=5400

d)12x125x54=81000

e)64x125x875=7000000

a) 

26.50 = 13. 2. 50 = 13 . 100 = 1300

36.25 = 9. 4 . 25 = 9. 100 = 900

16 . 125 = 2. 8. 125 = 2.1000 = 2000

b)  1200 : 25 = ( 1200. 4 ) : ( 25. 4 ) = 4800 : 100 = 48

2350 : 50 = ( 2350. 2 ) : ( 50 . 2 ) = 4700 : 100 = 47

8750 : 125 = ( 8750 . 8 ) : ( 125. 8 ) = 70 000 : 1000 = 70 

cảm ơn bn nhiều.Kết bn với mk nha

64.6+81.4+17.6

=6.(64+17)+81.4

=6.81+81.4

=81.(6+4)

=81.10

=810

g) Ta có: \(64\cdot6+81\cdot4+17\cdot6\)

\(=6\left(64+17\right)+81\cdot4\)

\(=81\cdot6+81\cdot4\)

=810

= 27 x 45 + 27 x 55

= 27 x (45 + 55)

= 27 x 100

= 2700

42.(-93)+93.52

=42.(-93)+(-93).(-52)

=(-93).[42+(-52)

=(-93).(-10)

=930

42.(-93)+93.52

= 42 . (-93) + (-93) . (-52)

= (-93) . [42+(-52)]

= (-93) . (-10)

= 930

( − 4 ) .13. ( − 250 ) = ( − 4 ) . ( − 250 ) .13 = 1000.13 = 13000